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Gentiana Linnaeus. Gentian.

Key to Gentiana

A genus of about 350-400 species, annual, biennial, and perennial herbs, primarily temperate and arctic. Even following the removal of Gentianopsis and Gentianella (to separate genera and a different subtribe), Gentiana is a large and apparently heterogeneous group, perhaps not monophyletic. No satisfactory comprehensive treatment is available, however. All of the species treated here as Gentiana are in the distinctive group treated here as section Pneumonanthe (Favre et al. 2020).

Key adapted from Pringle (1967).

ID notes:In some species it may be somewhat difficult to interpret the corolla lobes and the corolla appendages. The filaments are alternate to the corolla lobes, and are therefore attached to the lower portion of the corolla appendages.

Ref: Drake (2011); Favre et al. (2020); Halda (1996); Ho & Liu (1990); Ho & Liu (2001); Pringle (1967a); Pringle (1977); Pringle & Weakley (2009); Struwe & Pringle (2018) In Kadereit & Bittrich (2018); Weakley & Poindexter (2020a) In Weakley et al. (2020); Yuan, Küpfer, & Doyle (1996). Show full citations.

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image of plant© Alan Cressler: Gentiana pennelliana, Apalachicola National Forest, Liberty County, Florida 1 by Alan Cressler | Gentiana pennelliana source | Original Image ⭷
image of plant© Bruce A. Sorrie | Gentiana villosa | Original Image ⭷
image of plant© Gary P. Fleming | Gentiana villosa | Original Image ⭷
image of plant© Gary P. Fleming | Gentiana saponaria | Original Image ⭷
image of plant© Alan Cressler: Gentiana latidens, Blue Ridge Parkway, Jackson County, North Carolina 2 by Alan Cressler | Gentiana latidens source | Original Image ⭷

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